filesystems: add new category for file systems and related utilities

The filesystems category houses file systems and file system utilities.
It is added mainly to turn the sysutils/fusefs-* pseudo-category into
a proper one, but is also useful for the sundry of other file systems
related ports found in the tree.

Ports that seem like they belong there are moved to the new category.
Two ports, sysutils/fusefs-funionfs and sysutils/fusefs-fusepak are
not moved as they currently don't fetch and don't have TIMESTAMP set
in their distinfo, but that is required to be able to push a rename
of the port by the pre-receive hook.

Approved by:	portmgr (rene)
Reviewed by:	mat
Pull Request:	https://github.com/freebsd/freebsd-ports/pull/302
PR:		281988

Mk/Uses: always use colon for build/run suffix

Most USES use a colon for build/run(/test) suffixes. Change kde.mk,
qt.mk and pyqt.mk to do the same, and update all ports using that.

Document in CHANGES.

PR:			266034
Exp-run by:		antoine
Approved by:		tcberner (mentor)
Differential Revision:	https://reviews.freebsd.org/D36349

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

sysutils: remove 'Created by' lines

A big Thank You to the original contributors of these ports:

  *  <jsmith@resonatingmedia.com>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Landwehr <aaron@snaphat.com>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Adrian Chadd
  *  Adrian Chadd <adrian@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Alan Eldridge <alane@FreeBSD.org>
  *  Alan Eldridge <alane@geeksrus.net>
  *  Aldis Berjoza <aldis@bsdroot.lv>
  *  Alex Deiter <alex.deiter@gmail.com>

graphics/mesa-libs: Bump reverse deps for libglvnd

Per discussion with bapt on helping pkg handle the changing of these
deps and avoiding impossible upgrade senarios.

PR:		246767
Reviewed by:	manu, bapt
Approved by:	x11
Differential Revision:	https://reviews.freebsd.org/D30824

Remove # $FreeBSD$ from Makefiles.

sysutils/dsbmc:

- Update to 1.2
- Change distfile source and WWW to Github
- Update pkg-message

Approved by:	maintainer via mail

sysutils/dsbmc: Update to 1.1

ChangeLog: https://freeshell.de/~mk/projects/dsbmc-relnotes.html

 * The application name and RESOURCE_NAME environment variable will now be set
   so that WM_CLASS is defined.

 * An item has been added to the tray menu to show/hide the main window. This is
   basically a modification of the patch provided by @Peter2121.

 * realpath() will now be used to resolve image file paths.

 * When trying to start another instance of DSBMC, the main window of the
   previous instance will be shown.

PR:	248930
Submitted by:	mk@nic-nac-project.org (maintainer)

sysutils/dsbmc: prepare for Qt5 5.14

PR:		244964

sysutils/dsbmc: Update to 1.0

PR:		242951
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)

Update to 0.6.1.

PR:		236783
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)

sysutils/dsbmc: Update to 0.6

Changes:	https://freeshell.de/~mk/projects/dsbmc-relnotes.html
PR:		234133
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)

sysutils/dsbmc: Corrections to previous commit

* Sort USES
* Remove duplicate OPTIONS_DEFAULT

Reported by:	danfe
Pointyhat to:	swills

sysutils/dsbmc: update to 0.5

PR:		231082
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)

sysutils/dsbmc: Update to 0.4

This version adds GTK3 support.

PR:		227128
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)

sysutils/dsbmc: Update to 0.2.2

PR:		220970
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)

sysutils/dsbmc: Update to 0.2.1

PR:		220802
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)

sysutils/dsbmc: Update to 0.2

PR:		219499
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)
Approved by:	garga (mentor)
Differential Revision:	https://reviews.freebsd.org/D10964

Remove NLS, DOCS, EXAMPLES and IPV6 from OPTIONS_DEFAULT, they are enabled by
default anyway and don't need to be listed

Approved by:	portmgr blanket

- Update to 0.1.4

PR:		208755
Submitted by:	mk@nic-nac-project.org(maintainer)

Remove ${PORTSDIR}/ from dependencies, categories r, s, t, and u.

With hat:	portmgr
Sponsored by:	Absolight

Add a patch to fix installation as a regular user.

PR:		208039
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org> (maintainer)

DSBMC is a GTK+ client for DSBMD. It allows you to mount, unmount, open media
in a file manager, set the reading speed of a CD/DVD or play a CD/DVD.

WWW: http://freeshell.de/~mk/projects/dsbmc.html

PR:		207927
Submitted by:	Marcel Kaiser <mk@nic-nac-project.org>